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远古历史时期的汉江上游生态资源繁盛,随着人类历史发展,人类进入文字历史以来,汉江上游的生态逐渐受到人为因素的影响,但是这种影响并不大,在近几百年以来,尤其明清时期大量移民进入汉江上游大规模的垦殖活动以及近代以来极端缺乏植被恢复和保护是造成汉江上游生态资源大量减少的主要原因。
In the ancient history, the upper reaches of the Hanjiang River were rich in ecological resources. With the historical development of mankind, human beings had gradually been influenced by human factors in the upper reaches of the Hanjiang River since entering the history of characters. However, this influence was not significant. In recent centuries, During the Qing Dynasty, a large number of immigrants entered the upper reaches of the Hanjiang River for large-scale reclamation activities and the extreme lack of vegetation restoration and protection in modern times was the main reason for the drastic reduction of the ecological resources in the upper reaches of the Han River.